Vientiane: Prime Minister Narendra Modi on Thursday expressed deep concern at the rising "export of terror", in an apparent reference to Pakistan, saying it is a common security threat to the region as he sought a coordinated response from Asean member nations to combat the menace.

While addressing the 14th Asean-India summit, the Prime Minister also noted that growing radicalism through the ideology of hatred and spread of extreme violence are the other security threats.

Prime Minister Narendra Modi. GettyImages

"Export of terror, growing radicalisation and spread of extreme violence are common security threats to our societies," he said in his second attack on Pakistan in two days amid escalating war of words between New Delhi and Islamabad.

"The threat is local, regional, and transitional at the same time. Our partnership with Asean seeks to craft a response through coordination, cooperation at multiple levels," Modi said. He said that in the face of growing traditional and non-traditional challenges, political cooperation was a key emerging in our relations.

"We are willing to take concrete steps to enhance cooperation in cyber security, de-radicalisation and counter-terrorism," he added.

On Monday, Modi made a sharp attack on Pakistan at the G20 summit, saying "one single nation" in South Asia is spreading "agents of terror" as he asserted that those who sponsor the menace must be sanctioned and isolated, not rewarded.

In his remarks on Thursday, the Prime Minister said that Asean is central to India's Act East policy. "Our engagement driven by common priorities bringing peace, stability and prosperity to the region," he told the 10-member grouping attended by heads of state. He said enhancing connectivity was central to India's partnership with Asean.

Securing seas was a shared responsibility, he said, adding that sea lanes are "life lines of global trade".

India supports freedom of navigation based on United Nations Convention on the Law of the Sea (Unclos), he added. He thanked the member countries for sharing their views on "nature, direction and priorities of our engagement".

"All three pillars of our partnership — security, economic and socio-cultural have registered good progress," he said, adding that engagement of India-Asean is of "economic optimism". "We continue to expand and deepen our economic engagements," Modi said.

Laotian premier complimented India's Act East policy and its contribution to Asean and hoped the summit will provide future direction.